Means for effecting alpha reverse movement of alpha clutch-controlled shaft



- D. JONES 'May 24, 1932.

MEANS FOR EFFECTING A REVERSE MOVEMENT OF A CLUTCH CONTROLLED SHAFT Filed NOV. 14, 1929 Patented May 24, 1932.

UNirEn eams DAVID JONES, or WATERBUR CONNECTICUT, Assrerlvon TO-SCibVILL ivrANUFAC'rUR-i me OMPANY, or WATERBURY, CONNECTICUT, A CORPORATION" or ONNECTICUT MEANS FOR EFFECTINGV A REVERSE MOVEMENT 'o'F. i er eaeomaornm Application filed'lIovember 14, 1929 Seria1 NoQ 4e7,301. i'

A primary object of this invention is to provide a reversing movement for automatic machines for attaching buttons -or;fasteners,

so that should the machine jam in operation its motion may be reversed in order to clear out the jamming elements, Without disturbing the adjustment of the machine. p

In a well known machine of'this character,

there is therefore no lettingup on the pinch to remove the jammed parts without disturbing the adjustment of the machine. v

In the present invention an auxiliary clutching device is applied whereby upon'a desired reversal of the vdirection of move 'ment the drive pulley or fly-wheel may be made to turn with the shaft sufficiently to raise the plunger and thus relieve the jam sufficiently to remove the-damaged parts.

The invention consists of a collar fixedly V mounted to turn with the: shaft and having a spring-withheld pin which may be engaged with an unclutched drive-pulley, fly-wheel or other motion-imparting element when and as desired to permit the turning back or reversal of parts sufficient to admit of clearing jam, as I'will proceed now to. explain and finally claim. a

In the accompanying drawings illustrating 1 the invention,'in the several figures of which like parts are similarly designated, Figure 1 is an edge View of a drive pulley mounted on the shaft with the reversing collar of this invention shownin section; Fig. 2 is a front elevation of the reversing collar; Fig. 3 is a section on line 3-3 of Fig. 2, and Fig. lis a section similar to Fig. 1 of the collar,rbut Y away, the frictional engagement of the pin with the spring pin and set screws omitted.

1' may represent a drive pulley loosely mounted on the shaft 2 in any usual or approved manner." This drive pulley maybe clutched to turn with the shaft, and in the machine above referred to is-used a clutch of the roller type. a a r a As already pointed out, in some classes of machines, especially automatic 'machines,

there is a possibility of jamming, and inlor} der to provide for the ready "relief jamming when it occurs, it isnecessary to re-;-

verse the drive shaft sufliciently to permit an V operative part, such as a plunger, to be lifted 1 f in order to gainaccess'tdthe j ammed; parts without disturbing the'adjustment of the ma- I chine. For this purpose'I-provide acollar 3 which maybe applied to the end 4 ofthe drive shaftby mean'sof one or morefltrans-r .verse set screws 5 jThe collar is provided withan opening'6 in whichis m'ounteda pin 7having a'flanged head 8. This pin is "northe hole 6 at one end and against thefianged head of the pin at the other end. Any suit-f mally pressed outward by a coiled spring9 V abutting against the partly-closed bottom of able device maybe used to prevent the'esa cape of the spring pin from the collar, If

have shown one such means'particularly in Figs, 2 and "3, same being a cap screw lO set in the material of the collar'with its headinl a' countersink opening into "the opening 6 so that the headof the screw will overlap the flange of the head of the pin." I i j In the hub 11 of the'drive pulley 1 means or more sockets 12 adaptedto be brought alignment'with the pin'7.

As aleady stated, the pin -is spring-projected outwardly solasl to "free the pin'from engagement with thesockets 12, but when, occasionarrives for the reversal I ofthe shaft or pulley, the pulley is'uncli1tch-'v ed and then itis'turned backuntil the pin 7;

is opposite one of the sockets l2, and "then by .f I

means of his finger the operator pushes inthe,

pin 7 against tension. 'ofthe'spring' 9, when, by movement the .pin is frictionally engaged with'the socket in the hub'of the pulley and reverse movement by hand is possible;

After the jammed parts have been cleared with the hub may be released by a' slight spring 9.

Thespring holds the pin'within thecollar in disengagedposition untilit, isstim'e to re-' verse the direction of therdrive shaft itselflx V and then only is the springpin jpositively v i.

pushed into engagement withany one o'f ithe r V sockets in the hub of the part 1, which may lPQ v of a' machine, and accordingly by'the term V and a the resulting friction or pinch .i on this pin'ho1ds it in eufl'iciently to back *oif the pressure enough to remove the jam. Just as soon as the pinch is taken ofl' the part 1, the

Spring pullsrthe pin out of engagement again and the'driv e in the forward direction ma 7 be resumed. v I p The part 1 may be, as shown, a drive pulm ley, {but as already stated, it'm'ay be a drive wheelorfly-wheel or any other moving part fdrive Wheel mentioned in the cla'iins,I do" 7 not mean to be limited to that one particular 16 power element." p i 1 Variations in the details of construction aregpermis sible WlthiIl :the principle of-the I invention and the elaime following. 7 The'inventi-on, as clearly indicated in the an foregoing andjin the claims, is not limited .5, of 3, clutchrcontrolled Shaft having adrive ff to-its use on autom v atic button and fastener V attachin machines. y WVhatI'claim is f 1 Meanslforjeifecting areverse movement Whee1, same consisting of a collar fixedly appliedto the end of the drive shaft, saidcollar having an opening partly closed at its H inner end, a headed pin mounted in said opening in alignment with the hole in, the

partly. closed portion, a spring arranged in 'saidopening betvveenthe head of the pin and Jthe partly closed bottom and adapted to normally project said pin outwardly, and a pin m retalnlng device; countersunki the collar parallel Withthe pin-and projecting intothe V i path-of outvvardmovementof the pin.

, 2. Means for'eflecting areverse movement of a ic'lutch-controlled drive shaft normally 1mturning in one clirectionand. having a drive positively thrown. into engagement With any v Wheel provided: With avh'ub and socketsftherein, acollar' fixedly applied to theendlof the driveshaft next to-eaid hub anolhaving a V V normally retracted spring pin adapted to be 1 DAVID JONES, 

